The Jump Boost Steps mod allows you to walk up blocks without needing to jump while you have the jump boost effect. The higher the effect the more blocks you will be able to walk up.

The block height steps are:
The height added per jump boost level is configurable in the jump-boost-steps-common.toml file.
If you find a bug feel free to report it in the GitHub repository.
You may use this mod in your mod packs.